Patents Examined by Michael Y. Mar
  • Apparatus for selectivity varying the stiffness of a ski
    Patent number: 5320377
    Abstract: A system for changing the stiffness of a ski includes springs for urging a ski boot into a ski binding, and apparatus for modifying the biasing force to change the stiffness of the ski.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: June 14, 1994
    Inventor: Piero Ruffinengo